{"product_id":"spatex-mrd50-1b-filter-cartridge","title":"MRD50-1B Waterway \/ Rainbow RDC 50 \u0026 Waterco Top Load Filter Cartridge - 340mm x 126mm - 817-5000 - Spatex by Magnum","description":"\u003ch3\u003eSpatex MRD50-1B Waterway \/ Rainbow RDC 50 \u0026amp; Waterco Top Load Filter Cartridge - 340mm x 126mm - 817-5000\u003c\/h3\u003e\n\u003cp\u003eSpatex MRD50-1B replacement pleated filter cartridge, made in New Zealand by Magnum Filters. Suits Waterway and Rainbow RDC50 and RTL50 top load filters, Waterco top load housings, and Jacuzzi J245 and J275 spas. A very common cartridge found on spas dating back more than twenty years.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpatex filter cartridges are manufactured by \u003cstrong\u003eMagnum Filters\u003c\/strong\u003e in \u003cstrong\u003eNew Zealand\u003c\/strong\u003e. Magnum have been producing spa and pool filter cartridges since 1982 and supply OEM and co-branded cartridges to spa manufacturers and distributors worldwide. These are not low-grade generic filters - they use quality pleated filtration media for reliable water flow, solid dirt-holding capacity and consistent service life, and are used throughout the Australian spa industry alongside WWDG and SpaPro style filters.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 338mm to 340mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 125mm to 126mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentre hole ID:\u003c\/strong\u003e 54mm to 55mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop:\u003c\/strong\u003e Flat with open hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom:\u003c\/strong\u003e Flat with open hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter area:\u003c\/strong\u003e 50 sqft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpatex part number:\u003c\/strong\u003e sx-rd50-1b\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnum part number:\u003c\/strong\u003e MRD50-1B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of manufacture:\u003c\/strong\u003e New Zealand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso Known As\u003c\/h3\u003e\n\u003cp\u003eThis cartridge is sold under a number of OEM, distributor and aftermarket part numbers, including: MRD50-1B, MRD50, MRA50-1B, 817-5000, FAA309, FC-FAA309, FC-237, WWDG 309, SpaPro 339, Unicel C-4950, FC2390, PRB50-IN, Guardian 413-212-02, RFILADF50B.\u003c\/p\u003e\n\u003ch3\u003eCommonly Suits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWaterway top load and in-line filters\u003c\/li\u003e\n\u003cli\u003eWaterco top load filters\u003c\/li\u003e\n\u003cli\u003eRainbow RDC and RTL filter housings\u003c\/li\u003e\n\u003cli\u003eJacuzzi J245 and J275\u003c\/li\u003e\n\u003cli\u003eVarious Chinese-manufactured spas using 50 sqft top load filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpa brand alone is not enough to identify a filter. Manufacturers frequently change filtration systems between models and production years, so always compare your existing cartridge before ordering.\u003c\/p\u003e\n\u003ch3\u003eBefore You Order\u003c\/h3\u003e\n\u003cp\u003eThis cartridge can also be used in place of the RDC25. It is the same physical size but carries more pleats, so it gives more filtration area in the same housing.\u003c\/p\u003e\n\u003cp\u003eMeasure the overall length, the outside diameter, the top style and the bottom connection and compare them against this listing. If you are unsure, send us a photo and the measurements of your old cartridge and we will confirm the correct replacement.\u003c\/p\u003e\n\u003ch3\u003eFilter Replacement Guide\u003c\/h3\u003e\n\u003cp\u003eSpa filters should generally be replaced every \u003cstrong\u003e1 to 2 years\u003c\/strong\u003e, depending on usage, water quality, chemical balance and cleaning routine. Rinsing the pleats regularly and soaking the cartridge in a dedicated filter cleaner will extend its working life between replacements.\u003c\/p\u003e","brand":"Spatex","offers":[{"title":"Default Title","offer_id":48351603785917,"sku":"sx-rd50-1b","price":57.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/mrd50-1b-waterway-rainbow-rdc-50-waterco-top-load-filter-cartridge-340mm-x-126mm-817-5000-spatex-by-magnum-filters-398.webp?v=1788173962","url":"https:\/\/heaterandspaparts.com.au\/products\/spatex-mrd50-1b-filter-cartridge","provider":"Heater and Spa Parts","version":"1.0","type":"link"}